Marvel’s Inhumans has some new company. This week, it was announced Serinda Swan (pictured) and Ken Leung have joined the upcoming ABC TV series.

Based on the Marvel Comics characters, the drama will follow “the story of Black Bolt and the royal family.” The cast also includes Iwan Rheon and Anson Mount.

Swan will play Medusa, “the Queen of the Inhumans and wife of Black Bolt – his most trusted advisor, a fiercely resilient warrior who has the ability to move and control her hair the way most people use their hands and fingers.” Meanwhile, Leung has been cast as Karnak, “Black Bolt’s cousin and closest advisor.”